Milton h



(No Model.) M. H. PIA-RT.

SPRAYVNOVZZ'LB FOR FIRE HOSE.

* No. 523,768. Patented Jul- 31; 1894.

W/TNESSESQ INVENTOH (1.1473 51. Mz ZZOnH./'/art I BY.

UNITED STATES PATE T OFFI MILTON H. HART, on NEW YORK, N. Y., ASSIGNOROF ONE-THIRD TO THOMAS v. FORSTER, OF SAME PLACE.

SPRAY-NOZZLE FO R FIRE-HOSE.

SPECIFICATION forming part of Letters Patent No. 523,768, dated July31,1894. Application filed December 5, 1893- Serial No. 492,814- (Nomodel.

, =J all whom it may concern.-

Be it known that I, MILTON H. HART, a citizen of the United States ofAmerica, and a resident of New York city, county and State of New York,have invented certain new and useful Improvements in Spray- Nozzles forFire-Hose, of which the following is a specification.

The object of my invention is to produce an effective device forconverting water into a vapor practically instantaneously when thrownupon a burning object or into a room where there is a conflagration.

For the purpose of carrying out my invention I have annexed heretodrawings which have been made from a full working device.

Figure l. is a view partly in section and partly in elevation of theapparatus. Fig. 2. is a section of a portion of the device shown inFig. 1. Fig. 3. shows an application of a device.

The nozzles a, have approximately the form of half of a hollow sphere,and ports b, are cut into the same, said ports being four in number andextending nearly around the circumference of the hemisphere; inaddition, the slots 0, are cut into the sphere, from near the ports 1),toward the pole, leaving a small portion of the metal solid around thepole. These nozzles are attachable to an ordinary hose by means of screwthreads shown in the lower broken away portion of Fig. 1. The waterenters the nozzle from the hose, and issues fromthe various openings andis broken up into spray, and thus made to cover a large area, varying indiameter according to the size of the machine and the pressure appliedin forcing the water through the nozzle. The water which issues from theslots 0, is thrown forward in spray in the generalshape of a half ball.

In Figs. 1 and 2, is shown a device whereby the volume of spray can beconcentrated, enlarged and regulated as to direction.

This nozzle is mounted upon, a straight pipe of convenient length, andprovided with a screw thread j, out upon its outer surface. Upon thepipe a sleeve '5, is mounted, and it can be moved axially to anyposition on the pipe by causing it to travel along the screw thread.Thus if it is at the nozzle end of the pipe, the water issuing from theports b, 1nstead of flying radially,will be diverted, and thrown outmore in the direction of the axes of the pipe, so that the'volume ofspray will be concentrated into a smaller space, and its direction fixedin that of the axis of the pipe.

The remaining details of the device are as follows: Below the thread j,is attached apipe k, by means of the screw thread Z. The pipe 70, hasports m, which do not radiatein a plane perpendicular to the axis of thepipe, as in the case of the ports b, but backward so that if the nozzleis thrust through the hole of a floor p, into a room below, as in Fig.3, the Water will be forced backward upon the celling as-well as forwardand sidewise. The dotted lines it, in Fig. 3, show the numerousdirections of the streams of spray. which 1mmediately become convertedinto an atmosphere of steam which will not support combustion.

In order that the ports m, may at pleasure be closed effectively a ring0, having a packing q, is movable by means of proper screwthreads, alongthe length of the pipe k, to such an extent that the packing q, closestheholesm.

The devices are intended to be used primarily in extinguishing fires inclosed spaces, such as cellars, warehouses, holds of vessels or docks,as such spaces can be entered and the smoke filling them driven beforethe operator until the fire is located and extinguished.

I claim as my invention- 1. A spray nozzle consisting of the combinationof a pipe a portion of which has approximately the form of half of ahollow sphere and having ports extending in the direction of thecircumference of the hemisphere, and slots cut into the spherical partfrom near the said ports toward the pole; and a ring applied to thepipeand surrounding the ports and slots.

2. A spray nozzle consisting of the combination of a pipe a portion ofwhich has approximately the form of half of a hollow sphere and havingports extending in the direction of the circumference of the hemisphere,and slots cut into the spherical part from near the said ports towardthe pole; and a ring applied to the pipe and surrounding the ports andslots, said ring being adjustable along the length of the pipe.

3. A spray nozzle consisting of the combination of a pipe a portion ofwhich has approximately the form of half of a hollow sphere and havingports extending in the direction of the circumference of the hemisphere,and slots cut into the spherical part from near the saidports toward thepole; and aring applied to the pipe andsurrounding the ports and slots,and a second pipe attached to the first at the end opposite thespherical part and provided circumferen tially with holes whose axesextend backward from the spherical end of the nozzle.

4. A spray nozzle consisting of the combination of a pipe, a portion ofwhich has approximately the form of half of a hollow sphere and havingports extending in the direction of the circumference of the hemisphere,and slots cut into the spherical part from near the said ports towardthe pole; and a ring applied to the pipe and surrounding the ports andslots, a second pipe attached to the first at the" end opposite thespherical part and provided circumferentially with holes whose axesextend backward from the spherical end of the nozzle and means foropening and closing said holes.

5. A spray nozzle consisting of the combination of a pipe a portion ofwhich has approximately the form of half of a hollow sphere and havingports extending in the direction of the circumference of the hemisphere,and slots cut into the spherical part from near the said ports towardthe pole; and a ring applied to the pipe and surrounding the ports andslots, a second pipe attached to the first at the end opposite thespherical part and provided circumferentially with holes whose axesextend backward from the spherical end of the nozzle and means foropening and closing said

